Journal of Energy Storage
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2026
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IF 9.8
Ying Gao,Libo Wang,Ji'a Yang,Qixun Xia,Qianku Hu,Yukai Chang,Aiguo Zhou
MXenes are a promising cathode materials for aqueous zinc ion batteries (AZIBs) due to their layered structure, metallic conductivity, and hydrophilicity. Vanadium diselenide (VSe 2 ) is a typical transition metal dichalcogenide with good metallic properties and high conductivity. In this work, V 2 CT x was successfully synthesized by etching V 2 AlC with a hydrochloric acid solution of sodium fluoride, and surface selenization of V 2 CT x was accomplished using a high-temperature solid-state reaction. During the reaction process, some vanadium atoms on the surface of V 2 CT x were selenized and transformed into small VSe 2 nanosheets, while oxygen-containing groups form V 2 O 3 with vanadium atoms, and resulting in a V 2 CT x /VSe 2 /V 2 O 3 heterostructure material. The components of the nanohybrid were tuned by changing the mass ratio of selenium to V 2 CT x and the optimized VSe 2 –14 composite simultaneously achieved high specific capacitance (224.8 mAh/g after 200 cycles at 0.5 A g −1 ), excellent rate performance (126.2 mAh/g at 10 A g −1 ), and satisfactory cycle stability (141.3 mAh/g after 1300 cycles at 5 A g −1 ). This study provides a reference for the application of MXene-based materials in aqueous zinc ion batteries.
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APPLIED CATALYSIS B-ENVIRONMENTAL
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2026
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IF 21.1
Zi-Ang Lu,Shan Jin,Ranran Liang,Tingting Qu,Yunchen Du,Xijiang Han,Mengxin Chen,Ping Xu
Photo-assisted electrocatalysis offers a promising pathway for efficient solar-powered hydrogen production. However, controlling the separation of photogenerated carriers under electro-driven conditions through structural design remains a significant challenge. This work proposes a Group VIA anion modulation strategy for synthesizing a series of Ni(OH) 2 -based heterojunction nanoarrays (Ni(OH) 2 /NiO, Ni(OH) 2 /NiS 2 , and Ni(OH) 2 /NiSe 2 ). The optimized Ni(OH) 2 /NiS 2 heterostructure exhibits excellent photo-assisted electrocatalytic activity, reducing the overpotentials of the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) to 156 mV and 260 mV at 10 mA cm −2 , respectively, while achieving a high photocurrent density of 4.9 mA cm −2 . Furthermore, quantitative decoupling analysis reveals a synergistic “photo-electro-thermal” mechanism, indicating that the heterojunction simultaneously amplifies photothermal heating and enhances the non-thermal transient photoelectric effect. Combined in situ spectroscopic characterization and DFT calculations reveal that the introduction of sulfur/selenium not only broadens the light absorption range but also constructs an interfacial Ohmic contact through work function modulation, promoting charge separation and optimizing surface reconstruction thermodynamics, thereby effectively reducing the reaction barrier. This work provides a rational design strategy for high-performance water-splitting electrocatalysts and elucidates the electronic modulation of heterointerfaces in photo-assisted electrocatalysis.
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Nature Protocols
·
2026
·
IF 18.4
Zhang Yingying,Wu Yingnan,Jing Zehao,Chen Xiaoqiang,Li Mingle,Peng Xiaojun
Photodynamic therapy using an appropriate photocatalyst results in the production of cytotoxic reactive oxygen species for tumor ablation. However, the inherent O 2 dependence of conventional photodynamic therapy limits its clinical translation. To overcome this challenge, here we developed a selenium-substituted Nile blue derivative (ENBSe) as a versatile O 2 -independent photocatalyst. Under near-infrared light irradiation, ENBSe can drive the biological oxidation of NADH to NAD + while simultaneously triggering the cascade reduction of cytochrome c (Fe³⁺ to Fe²⁺), even in the absence of O 2 . To improve tumor specificity and targeting, we further developed a conditionally activatable photoredox catalysis (ConAPC) system. ENBSe is covalently attached to 4-nitrobenzyl chloride via a carbonic anhydride bond, wherein the nitro group can be specifically cleaved by nitroreductase (NTR), an enzyme overexpressed in hypoxic tissues. Such ConAPC design prevents reaction with NADH and quenches the fluorescences of ENBSe, which means that the drug molecule, ENBSe–NTR, is catalytically inactive. ENBSe–NTR is, to our knowledge, the first tumor microenvironment-responsive ConAPC molecule that enables O 2 -free, tumor-specific catalytic therapy. By replacing the 4-nitrobenzyl chloride group, it might be possible to target cells with different microenvironmental conditions. This protocol presents a standardized workflow encompassing the synthesis of ENBSe and its application for photocatalytic modulation of cellular electron flow in the mitochondrial electron transport chain via an O 2 -independent mechanism of action. The outlined protocol specifies a synthesis period of ~4 d for ENBSe, ~4 h for photoredox spectroscopic characterization and 4–5 weeks for photodiagnostic assessment in cancer cell and mice models.
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PubMed
高影响因子
JOURNAL OF NANOBIOTECHNOLOGY
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2026
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IF 15
Jinfan Zhou,Gaohua Li,Yunze Xu,Wenhui Ma,Xuehua Zhang,Haitao Yuan,Zilin Tan,Zhenghao Li,Hongwei Yu,Zhenzhao Xu,Zhiqiang Yu,Jiafei Xi,Chaoping Fu,Yanan Wang
The treatment of solid tumors with chimeric antigen receptor natural killer (CAR-NK) cell therapy confronts significant barriers, notably poor cellular infiltration and a highly immunosuppressive tumor microenvironment (TME). To overcome these challenges, we developed selenium-containing polymer nanoparticles (ManNAl-SeNPs) loaded with dibenzocyclooctyne (DBCO)-modified mannose. Metabolic glycoengineering metabolic glycoengineering (MGE) enabled efficient labeling of exogenous DBCO on azide (N 3 ) groups on CAR-NK cells, establishing a bioorthogonal click chemistry targeting strategy, significantly improving the anti-tumor activity of azide-CAR-NK (N 3 -CAR-NK) cells, including recognition specificity, migration efficiency, and cytotoxic activity. Herein, ManNAl-SeNPs with ultra-sensitive responsiveness of diselenide bonds, in the acidic TME, diselenide bond releases seleninic acid, acting as an immune checkpoint inhibitor while augmenting CAR-NK cells cytotoxicity. In vivo, the combination of ManNAl-SeNPs with N 3 -CAR-NK cells significantly increased targeting capacity and invasiveness. This study presents a TME-responsive nanoplatform with artificial bio-orthogonal combination strategy that effectively enhance the migratory ability and accumulation of CAR-NK cells for potent antitumor therapy.
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JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
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2026
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IF 16.8
Yuan Wang,Chong-Jian Zhou,Xin-Hao Zhao,Ruo-Pu Liu,Meng-Yue Wu,Zhong-Qi Shi,Guang-Kun Ren,Jun Tang,Lei Yang
Decoupling the interrelated thermoelectric parameters is challenging for developing Ag 2 Se-based room temperature thermoelectrics. In this study, we construct specific grain boundary complexes that contain nano-sized TiO 2 and Au particles in Ag 2 Se through a one-step solvothermal process combined with spark plasma sintering. The decorated Ag 2 Se exhibits enhanced power factor due to the increased carrier concentration and maintained carrier mobility, while the introduced broadband phonon scattering effectively reduced thermal conductivity. The decoupled electrical and thermal transport properties result in a high zT value of 1.19 at 390 K in the Ag 2 Se decorated by 0.4 wt.% TiO 2 and 0.5wt.% Au, along with improved mechanical properties. The device assembled by using the optimal sample shows a maximum output power of 65 mW and a maximum energy conversion efficiency of 2.3% under a temperature difference of 80 K. The aging test results highlight the good stability of our devices. Therefore, constructing grain boundary complexes could be a promising strategy for developing practical Ag 2 Se thermoelectrics.
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RARE METALS
·
2022
·Vol. 42
·期 3
·916-928
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IF 6.318
Hu Jin-Zhi,Liu Wen-Jie,Zheng Ji-Hua,Li Guo-Chun,Bu Yong-Feng,Qiao Fen,Lian Jia-Biao,Zhao Yan
Cobalt selenide (CoSe 2 ) has become a promising anode material for sodium-ion batteries (SIBs) due to its stable chemical properties, environmental friendliness, and high theoretical capacity. However, the undesirable rate capacity and cycle stability of the anode materials largely limit its applications for SIBs due to the relatively low electronic conductivity and huge volume change during the Na + insertion/extraction. In this study, electrostatic spinning combined with a wet chemical method is employed to synthesize coral-like composite material (CNF@c-CoSe 2 /C), which is composed of CoSe 2 /carbon nanosheet arrays (CoSe 2 /C) and carbon nanofibers (CNFs). CoSe 2 /C nanoflakes derived from metal-organic frameworks (MOFs) with high surface area and the porous structure can inhibit the pulverization and amorphization of CoSe 2 during charge and discharge processes, thus significantly keeping the stability of the microstructure. CNF can limit the overgrowth of nanosheets and serve as a conductive skeleton. Compared to two-dimensional CoSe 2 /C nanoflakes and pure CoSe 2 nanoparticles, the composite can expose more active sites and effectively accelerate the diffusion of Na + , which displays enhanced rate capability (266.5 mAh·g −1 at 5.0 A·g −1 ) and cycling stability (268.3 mAh·g −1 after 100 cycles at 1.0 A·g −1 ). Moreover, the rational preparation strategy for metal selenide-based heterostructure material presents a new way for high-performance SIBs. Graphical abstract
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Inorganic Chemistry Frontiers
·
2022
·Vol. 10
·期 2
·424-434
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IF 7.779
Jun Yang,Chenrui Zhang,Jitao Geng,Yangyang Sui,Huaixin Wei,Chencheng Sun,Hongbo Geng,Yushen Liu
Herein, in situ chemical anchoring of nickel cobalt selenide (Ni3Se4/CoSe2) on two-dimensional (2D) black phosphorene is creatively proposed via a facile approach. The introduction of 2D black phosphorene brings abundant interfacial effects and provides fully exposed active sites. The construction of such a heterogeneous structure (BP@Ni3Se4/CoSe2) effectively buffers the volume expansion effect caused by Na ion insertion and promotes electron/ion transfer during cycling. Therefore, the BP@Ni3Se4/CoSe2 electrode exhibits superior sodium storage properties in half cells, such as a high stable discharge specific capacity (about 358.8 mA h g−1 at 1 A g−1 after 100 cycles), excellent cycling stability (up to 2500 cycles, the capacity retention rate close to 82%) and high rate performance (from the initial 0.2 A g−1 to the final 20 A g−1 and the total capacity retention rate is about 76%). In addition, BP@Ni3Se4/CoSe2 achieved a high energy density of 163.7 W h kg−1 at the power density of 136.4 W kg−1 in the sodium-ion battery full battery test. Such high performance of BP@Ni3Se4/CoSe2 is attributed to its excellent reaction kinetic characteristics. The investigation of the sodium storage mechanism of BP@Ni3Se4/CoSe2 is conducted in detail.
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APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Xusheng Dong,Ruizheng Zhao,Bin Sun,Tengsheng Zhang,Boya Wang,Yanyan He,Tingting Gao,Dongliang Chao,Guowei Zhou
Transition metal selenides are regarded as potential sodium storage materials for their high theoretical capacity and superior electrical conductivity. However, unsatisfied cycle stability and rate capability, which is caused by its intrinsic structural instability and sluggish conversion reaction, greatly hinder the application. Herein, in-situ electrostatic attraction and selenization process are used to construct Ni 0.5 Co 0.5 Se 2 /Ti 3 C 2 T x composite, in which the homogeneous Ni 0.5 Co 0.5 Se 2 nanoparticles are anchored in the Ti 3 C 2 T x MXene architecture. Based on the unique confinement effect and strong chemical interface coupling, the volume expansion and aggregation of the Ni 0.5 Co 0.5 Se 2 /Ti 3 C 2 T x anode during the cycling process are effectively prevented. Furthermore, the evenly Ni 0.5 Co 0.5 Se 2 bimetallic selenides nanoparticles endow rapid charge transfer and redox kinetics due to shortened Na + diffusion distance and more accessible active sites. As a result, the as-prepared Ni 0.5 Co 0.5 Se 2 /Ti 3 C 2 T x anode exhibits long cycle stability over 1000 cycles at 2.0 A g −1 , pushing forward the construction of advanced conversion-type anode for high-performance sodium-ion batteries.
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Journal of Energy Chemistry
·
2023
·
IF 13.1
Rong Zou,Wenwu Liu,Fen Ran
Sulfur-containing polymer (SCP) is considered as an outstanding cathode material for lithium-sulfur batteries. However, undesirable soluble polysulfides may shuttle in electrolyte, concluding long-chain Li 2 S n ( n > 4) and short-chain Li 2 S n ( n ≤ 4), as well as the sluggish conversion kinetics are yet to be solved to enhance the performance of lithium-sulfur batteries. Here Se-doped sulfurized polyaniline with adjusted sulfur-chain −S x − ( x ≤ 6) contribute to ensure the absence of long-chain polysulfides, and the skeleton with quinoid imine can endow strongly adsorption towards short-chain polysulfides by the reversible transition between deprotonated/protonated imine ( - N H + = and - N = ), which offer double insurance against suppressing “shuttle effect”. Furthermore, Se atoms are doped into sulfurized polysulfides to accelerate the redox conversion and take a frontier orbital theory-oriented view into catalytic mechanism. Se-doped sulfurized polyaniline as active materials for lithium-organosulfur batteries delivers good electrochemical performance, including high rate, reversible specific capacity (680 mA h g −1 at 0.1 A g −1 ), and lower capacity decay rate only of 0.15% with near 100% coulomb efficiency during long-term cycle. This work provides a valuable guiding ideology and promising solution for the chemistry-oriented structure design and practical application for lithium-organosulfur batteries.
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CRYSTENGCOMM
·
2023
·Vol. 25
·期 6
·981-987
·
IF 3.1
Nan Li,Minghao Shi,Wei Zhan,Wenjing Shen,Mianmian Wu,Guifang Sun,Qingfei Li,Jiangquan Ma
Ru-based catalysts are potential substitutes for Pt in the hydrogen evolution reaction (HER). It is worth noting that the Se ions in RuSe2 can modulate the electronic structure of the Ru metal, thus effectively improving the HER kinetics of RuSe2. However, single electronic structure modulation is hard to complete due to the electron deficiency of active Ru atoms. Herein, we prepare and design a novel RuSe2/Co–N–C (RuSe2 nanospheres supported on Co–N–C nanosheets) electrocatalyst with two-electron modulation by a hydrothermal and thermal annealing method. Benefiting from the uniform distribution of RuSe2 nanospheres on Co–N–C nanosheets and Co–N–C nanosheets acting as additional electron donors to make up for the electron deficiency of the Ru metal, RuSe2/Co–N–C exhibits excellent HER performance with a low overpotential of 26.4 mV at 10 mA cm−2 and a low Tafel slope of 53.2 mV dec−1. This work offers an effective method for the synthesis of high catalytic performance electrocatalysts by constructing an interaction between the carrier and the active metal.
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SENSORS AND ACTUATORS B-CHEMICAL
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2022
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IF 9.221
Bing Yang,Yue Song,Yang Song,Ziyu Ma,Jianbo Sun
2D transition metal selenides are facing challenges in the field of gas sensing due to their short carrier lifetime and low utilization rate. Along these lines, in this work, MoSe 2 nanosheets were successfully synthesized by solvothermal method , and modified with TiO 2 QDs. P-N heterostructures with the advantage of quantum dot constraint effect are constructed. The developed heterojunction can effectively promote the separation and transfer of the generated charges, under the excitation of ultraviolet light , while the room temperature sensitivity of the material for the detection of NO 2 is enhanced.
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INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
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2022
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IF 7.139
Huihui Xu,Zhiqiang Wang,Shufan Feng,Xinman Liu,Xueqing Gong,Jianli Hua
In recent years, PDI-based supramolecular photocatalysts have attracted significant attention. However, charge localization effects hinder the charge transfer in PDI , thereby leading to a high recombination rate and limited activity. Herein, three heteroatom bay-annulated perylene diimide supramolecule photocatalysts ( N-APDI , S-APDI and Se-APDI ) were developed for photocatalytic H 2 evolution. Under visible-light irradiation, heteroatom-annulated PDI supramolecule display better H 2 evolution rate than that of APDI without heteroatom, in which N-APDI shows the highest hydrogen production rate of 61.49 mmol g −1 h −1 and an apparent quantum yield (AQY) of 5.90% at 420 nm. The enhancement in photocatalytic activity of heteroatom-annulated PDI supramolecule can be rationalized by stronger molecular dipole, which enhance internal electric field magnitude and thus promotes the separation and migration of charge. Also, heteroatom-annulation heteroatom can act as more beneficial active site to promote HER activity. This work provides a new strategy to develop supramolecular photocatalysts.
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